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만성 췌장염에 병발된 간경색과 췌장 가성동맥류: 1예 보고
정연오 ( Yeon Oh Jeong ),이재곤 ( Jae Gon Lee ) 대한췌담도학회 2017 대한췌담도학회지 Vol.22 No.1
간의 혈류는 간동맥과 간문맥으로 공급되기 때문에 간경 색은 비교적 드문 질환이고 특히 수술이나 시술 등의 합병증으로 인한 간경색이 아닌 만성 췌장염에 의한 간경색은 더 드물다. 본 저자들은 평소 술을 자주 마시는 만성 췌장염 병력이 있는 31세 여자 환자가 복부 통증을 주소로 내원하여 만성 췌장 염에 병발된 간경색과 하췌십이지장동맥의 가성동맥류를 진단하였고 헤파린 투여 및 코일색전술을 통하여 치료에 성공 했던 증례를 경험하여 보고한다. Liver infarction is rare because of dual blood supply of the liver with hepatic artery and portal vein. And its occurrence as a complication of chronic pancreatitis is rarer. We present a case of chronic pancreatitis complicated by liver infarction and inferior pancreaticoduodenal artery pseudoaneurysm. A 31-year-old female with alcoholism presented with severe acute epigastric pain. Serum amylase and lipase were 203 IU/L and 78 IU/L, respectively. Initial computed tomography (CT) scan showed peripancreatic infiltration, fluid collection, right portal vein thrombosis, and a large wedge-shaped low attenuation in the right hepatic lobe. The patient has been treated with heparin. Follow-up CT scan done after 4 days of heparin treatment demonstrated a pseudocyst with internal hemorrhage and a pseudoaneurysm. Angiography revealed a pseudoaneurysm in inferior pancreaticoduodenal artery. Coil embolization of the artery was done. The patient has been discharged without complication. Follow-up CT scan showed resolution of liver infarction, portal vein thrombosis and pseudoaneurysm.
복막투석중인 당뇨병 환자에서 발생한 양측성 기종성 신우염
정연오 ( Yeon Oh Jeong ),전상훈 ( Sang Hoon Chun ),유지연 ( Ji Yoen Yu ),원강연 ( Kang Yeon Won ),이상주 ( Sang Ju Lee ),장윤경 ( Yoon Kyung Chang ),이연수 ( Yeon Su Lee ),김석영 ( Suk Young Kim ) 대한신장학회 2009 Kidney Research and Clinical Practice Vol.28 No.1
Emphysematous pyelitis is uniquely characterized by gas-forming infection restricted to the renal collecting system. This disease entity is uncommon, and shows preferred occurrence in patients with diabetes mellitus or urinary tract obstruction. We report a case of bilateral emphysematous pyelitis in a diabetic end-stage renal disease patient undergoing peritoneal dialysis therapy. The patient was treated by medical treatment only and then recovered from infection, and she has maintained peritoneal dialysis until today. The authors report this case as a successful medical treatment for emphysematous pyelitis accompanying multiple risk factors, such as diabetes mellitus, amorphous medullary kidney stones, and even underlying maintaining peritoneal dialysis.
감염 : HIV 감염인에서 발생한 골다공증성 골절: 증례보고 및 문헌고찰
정연오 ( Yeon Oh Jeong ),장동원 ( Dong Won Jang ),권용환 ( Yong Hwan Kwon ),김석원 ( Seok Weon Kim ),박수연 ( Soo Yeon Park ),진범식 ( Bum Sik Chin ),신형식 ( Hyoung Shik Shin ) 대한내과학회 2015 대한내과학회지 Vol.88 No.2
The average life expectancy of human immunodeficiency virus (HIV)-infected patients has improved dramatically following the advent of highly active anti-retroviral therapy. However, this increased life expectancy has led to a greater incidence of non-acquired immune deficiency syndrome related diseases, including cardiovascular diseases and other malignancies. Increased bone fragility is also a significant concern, with the incidence of osteoporosis and osteoporotic fractures 3- and 2-times more likely, respectively, among HIV-infected patients. Bone mineral density screenings for osteoporosis will therefore become more important as the HIV-infected population ages. Here, we describe six cases of osteoporotic fractures in HIV-infected patients in Korea. (Korean J Med 2015;88:236-240)
신이식 환자의 기저 신장에 발병한 Post-transplant Lympoproliferative disorder (PTLD) 1예
유지연 ( Ji Youn Yu ),박미연 ( Mi Youn Park ),정연오 ( Yeon Oh Jeong ),이혜경 ( Hae Kyung Lee ),박지찬 ( Ji Chan Park ),이상주 ( Sang Ju Lee ),장윤경 ( Yoon Kyung Chang ),박석영 ( Suk Young Park ),김석영 ( Suk Young Kim ) 대한신장학회 2009 Kidney Research and Clinical Practice Vol.28 No.6
Post-transplant lymphoproliferative disorder (PTLD) following solid organ transplantation is an important form of post-transplant malignancy. PTLD is typically associated with Epstein-Barr virus (EBV) and occurs in the setting of immunosuppression resulting in a deficiency of EBV-specific cytotoxic T lymphocytes. PTLD encompasses heterogeneous lymphoproliferative diseases, from polyclonal proliferation resembling infectious mononucleosis to aggressive monomorphic proliferation such as diffuse large B-cell lymphoma. Clinically, PTLD is usually manifested as lymph nodal mass or extranodal mass of solid organs such as liver, transplanted kidney, tonsil, bone marrow or spleen. The authors experienced very rare case of PTLD manifested as a single mass in a native kidney. According to a review of the literature, this is a rare case of PTLD which developed in a native kidney after kidney transplantation. Initially under the impression of renal cell carcinoma, unilateral nephrectomy of the native kidney had performed, and after confirmed as PTLD by histologic diagnosis the patient had treated with reduction of immunosuppressants and chemotheraphy for PTLD, and eventually has got in complete remission.
스마트카드를 이용한 패스워드 기반 인증시스템 정형분석 (pp.138-139)
김현석(Hyun-Seok Kim),김주배(Ju-Bae Kim),정연오(Yeon-Oh Jeong),최진영(Jin-Young Choi) 한국정보과학회 2008 한국정보과학회 학술발표논문집 Vol.35 No.1
인터넷의 범용적인 사용으로 많은 사용자들이 분산된 컴퓨팅 환경에서 원격 서버에 접속하는 일이 빈번해 지고 있다. 하지만 인증된 보호시스템 없이 안전하지 않은 채널을 통한 데이터의 전송은 재생공격이나 오프라인 패스워드 공격 및 가장공격등과 같은 문제점들에 노출되어 있다. 이에 따라 악의적인 공격들을 막기 위해 스마트카드를 이용한 인증프로토콜들에 대해 활발히 연구되고 있다. 본 논문은 패스워드 기반 사용자 인증시스템의 취약성을 분석하고 이에 대해 개선된 사용자 인증 시스템을 제안한다.
스마트카드를 이용한 패스워드 기반 인증시스템 정형분석 (pp.304-310)
김현석(Hyun-Seok Kim),김주배(Ju-Bae Kim),정연오(Yeon-Oh Jeong),한근희(Keun-Hee Han),최진영(Jin-Young Choi) 한국정보과학회 2009 정보과학회논문지 : 시스템 및 이론 Vol.36 No.4
인터넷의 범용적인 사용으로 많은 사용자들이 분산된 컴퓨팅 환경에서 원격 서버에 접속하는 일이 빈번해 지고 있다. 하지만 인증된 보호시스템 없이 안전하지 않은 채널을 통한 데이터의 전송은 재생공격이나 오프라인 패스워드 공격 및 가장공격등과 같은 문제점들에 노출되어 있다. 이에 따라 악의적인 공격들을 막기 위해 스마트카드를 이용한 인증프로토콜들에 대해 활발히 연구되고 있다. 본 논문은 패스워드 기반 사용자 인증시스템의 취약성을 분석하고 이에 대해 개선된 사용자 인증 시스템을 제안한다. Due to widely use of internet, a lot of users frequently access into remote server in distributed computing environment. However, transmitting the information using vulnerable channel without authentication security system can be exposed to replay attack, offline password attack, and impersonation attack. According to this possibility, there is research about authentication protocol to prevent these hostile attacks using smart card. In this paper, we analyze vulnerability of user authentication system based on password and propose modified user authentication system.
해외유입 말라리아의 진단에서 말라리아 신속항원검사의 유용성
권용환 ( Yong Hwan Kwon ),김석원 ( Seok Won Kim ),박수연 ( Soo Yeon Park ),장동원 ( Dong Won Jang ),정연오 ( Yeon Oh Jeong ),김가연 ( Ga Yeon Kim ),진범식 ( Bum Sik Chin ),신형식 ( Hyoung Shik Shin ) 전북대학교 의과학연구소 2014 全北醫大論文集 Vol.38 No.2
Objectives: Peripheral blood smear is the gold standard for the diagnosis of malaria. However, it is labor-intensive, time consuming, and more importantly, requires skill and experienced microscopists. This study was carried out to evaluate diagnostic performance of rapid diagnostic test (RDT) for detection of imported malaria. Methods: Peripheral blood smears, and RDT on the medical records were analyzed retrospectively for patients with a history of a foreign travel who visited National Medical Center between August 2009 and December 2013. Compared with the peripheral blood smear, the sensitivity and specificity of RDT were evaluated. Results: Among the total of 368 blood samples, the peripheral blood smear diagnosed 42 P. falciparum and 6 non-falciparum infections. The overall sensitivity of RDT was 91.7% (44/48) and the overall specificity of RDT was 94.1% (301/320). The sensitivity for P. falciparum of the RDT was 97.6% (41/42) and it was increased up to 100% (39/39) with the parasite densities of > 50 parasites/μL. Conclusion: Considering rapidity, high sensitivity and specificity, RDT was useful as an adjunctive tool for diagnosis of imported malaria.
이재호 ( Jae ho Lee ),박성환 ( Sung Hwan Park ),박경수 ( Kyung Su Park ),김호연 ( Ho Youn Kim ),최우형 ( Woo Hyung Choi ),전병연 ( Byoung Yeon Jun ),민진수 ( Jin Soo Min ),김세원 ( Sei Won Kim ),정연오 ( Yeon Oh Jeong ),지은혜 ( E 대한류마티스학회 2010 대한류마티스학회지 Vol.17 No.4
Ankylosing spondylitis (AS) is occasionally accompanied by hematological malignancies such as myelodysplastic syndrome, acute myelogenous leukemia, or multiple myeloma. Chronic myelogenous leukemia (CML) is a myeloproliferative disorder associated with Philadelphia chromosome and is usually treated with imatinib, which inhibits tyrosine kinases. Although there have been reports of CML cases accompanied by several rheumatic diseases such as rheumatoid arthritis, Behcet`s disease, systemic sclerosis, or undifferentiated spondylopathy, no studies have reported a case of CML with AS. We experienced a 50-year-old male patient who presented with buttock and low back pain and was diagnosed with both AS and CML. Magnetic resonance imaging showed sacroiliitis along with abnormal marrow infiltration, and a bone marrow biopsy confirmed the CML diagnosis. He was treated with imatinib, which was effective for the CML but not for the AS. This is the first case report of AS accompanied by CML.